This Part Fits the following kits / parts:

#86756 - SHOCK SPRING 23x135x2.1mm 13COILS (YELLOW/2pcs)

Baja 5B/Front Soft/#86756 Soft/#86757 Medium/86759 Hard

Now available for the HPI Racing Baja 5B 1/5th scale gas buggy are
these new Shock Springs that will help Baja 5B
owners tune their suspension to track conditions for better
handling. Each spring is color-coded for easy identification and
the ends are ground flat so that the surface matches the spring
perches. The yellow springs are softer than stock, the blue springs
are harder than stock.